Quote:

---

What does an iron World block sell for?

---

Quote:

---

I disagree with the aluminum vs. iron debate. We run 1100 N/A with a 588" mega filled block and a 620" KB unfilled water block. Not one problem with the sleeves moving around on the 620" KB block. We've sprayed up to 400HP on top of the 1100 HP for a total around 1450-1500 HP. NOT 1 issue. It really boils down to the machine shop preparing and maching all the parts correctly.

Same heads ect.. as the 588" only differance was the lighter aluminum block and a 4.75" Callies crank and the car picked up 3-4 tenths. Oh and we sprayed about 50HP less NOS with the 620". Some of the power came from the stroke of the crank and weight, but I don't believe I lost HP due to the aluminum block. My oponion it's just an ole wise tale.

---

Quote:

---

I have to make a decision soon on what block to run and am looking for some input. Heads-up hemi, 65 belvedere trying to push the 1100 mark. I know the iron block will make more power, but it weighs a lot more as well. Is there anyone out there putting Worlds new block on a cnc diet? If so, any ideas on how light they can get? The one I saw weighed like 350lbs

There's no wheelie bars allowed so weight on the nose might not be a bad thing. I do like the repairability of alum and the light weight, so it makes for a tough decision on what way to go.

Thanks in advance for any help

---

I think you would be best off deciding on a budget. The aluminum will cost more initially but cost less to repair (usually)and there are more places to take it to get repaired.The iron block will be less initially but cost more to repair (usually) and not as many places to take it to get repaired. The other thing to consider is the power level, if you are looking to stay around 1,100 hp, a good block should hold up pretty well reguardless iron or aluminum